/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:43:17,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:43:17,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:43:17,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:43:17,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:43:17,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:43:17,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:43:17,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:43:17,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:43:17,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:43:17,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:43:17,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:43:17,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:43:17,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:43:17,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:43:17,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:43:17,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:43:17,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:43:17,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:43:17,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:43:17,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:43:17,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:43:17,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:43:17,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:43:17,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 03:43:17,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:43:17,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:43:17,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:43:17,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:43:17,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:43:17,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:43:17,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:43:17,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:43:17,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:43:17,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:43:17,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:43:17,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 03:43:17,282 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:43:17,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:43:17,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:43:17,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:43:17,285 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:43:17,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:43:17,286 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:43:17,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:43:17,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:43:17,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:43:17,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:43:17,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:43:17,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:43:17,288 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:43:17,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:43:17,288 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:43:17,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:43:17,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:43:17,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:43:17,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:43:17,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:43:17,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:43:17,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:43:17,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:43:17,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:43:17,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:43:17,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:43:17,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:43:17,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:43:17,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:43:17,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:43:17,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:43:17,631 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:43:17,631 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:43:17,632 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2019-12-27 03:43:17,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4114af60/008eda4abac5478fa54c3006cbf1be7b/FLAG42d98664e [2019-12-27 03:43:18,285 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:43:18,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2019-12-27 03:43:18,301 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4114af60/008eda4abac5478fa54c3006cbf1be7b/FLAG42d98664e [2019-12-27 03:43:18,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4114af60/008eda4abac5478fa54c3006cbf1be7b [2019-12-27 03:43:18,524 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:43:18,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:43:18,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:43:18,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:43:18,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:43:18,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:43:18" (1/1) ... [2019-12-27 03:43:18,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2840a5e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:18, skipping insertion in model container [2019-12-27 03:43:18,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:43:18" (1/1) ... [2019-12-27 03:43:18,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:43:18,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:43:19,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:43:19,098 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:43:19,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:43:19,267 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:43:19,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19 WrapperNode [2019-12-27 03:43:19,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:43:19,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:43:19,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:43:19,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:43:19,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:43:19,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:43:19,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:43:19,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:43:19,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... [2019-12-27 03:43:19,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:43:19,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:43:19,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:43:19,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:43:19,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:43:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:43:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:43:19,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:43:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:43:19,408 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:43:19,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:43:19,409 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:43:19,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:43:19,410 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:43:19,410 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:43:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:43:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:43:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:43:19,415 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 03:43:19,780 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:43:19,780 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:43:19,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:43:19 BoogieIcfgContainer [2019-12-27 03:43:19,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:43:19,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:43:19,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:43:19,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:43:19,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:43:18" (1/3) ... [2019-12-27 03:43:19,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b223b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:43:19, skipping insertion in model container [2019-12-27 03:43:19,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:19" (2/3) ... [2019-12-27 03:43:19,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b223b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:43:19, skipping insertion in model container [2019-12-27 03:43:19,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:43:19" (3/3) ... [2019-12-27 03:43:19,790 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2019-12-27 03:43:19,801 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:43:19,802 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:43:19,810 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:43:19,811 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:43:19,839 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,839 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,839 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,840 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,841 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,841 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,841 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,841 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,841 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,842 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,842 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,842 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,842 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,843 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,843 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,843 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,847 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,847 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,848 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,848 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,851 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,851 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,851 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,852 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,854 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,854 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,855 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,855 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:19,872 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 03:43:19,892 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:43:19,893 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:43:19,893 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:43:19,893 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:43:19,893 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:43:19,893 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:43:19,893 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:43:19,894 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:43:19,908 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 03:43:19,910 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 03:43:19,956 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 03:43:19,956 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:43:19,963 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:43:19,966 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 03:43:19,998 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 03:43:19,999 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:43:20,002 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:43:20,008 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 03:43:20,009 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:43:21,497 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 03:43:21,667 INFO L206 etLargeBlockEncoding]: Checked pairs total: 504 [2019-12-27 03:43:21,667 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 03:43:21,671 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 03:43:21,681 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 03:43:21,683 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 03:43:21,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 03:43:21,690 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:21,691 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:21,691 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:21,697 INFO L82 PathProgramCache]: Analyzing trace with hash -411766657, now seen corresponding path program 1 times [2019-12-27 03:43:21,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:21,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656806000] [2019-12-27 03:43:21,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:21,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:21,950 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656806000] [2019-12-27 03:43:21,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:21,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:43:21,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161250796] [2019-12-27 03:43:21,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:43:21,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:21,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:43:21,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:21,978 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 03:43:22,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:22,018 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 03:43:22,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:43:22,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 03:43:22,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:22,049 INFO L225 Difference]: With dead ends: 44 [2019-12-27 03:43:22,049 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 03:43:22,050 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:22,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 03:43:22,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 03:43:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 03:43:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 03:43:22,105 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 03:43:22,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:22,106 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 03:43:22,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:43:22,107 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 03:43:22,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:43:22,108 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:22,108 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:22,108 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:22,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:22,109 INFO L82 PathProgramCache]: Analyzing trace with hash -939565689, now seen corresponding path program 1 times [2019-12-27 03:43:22,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:22,109 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290192151] [2019-12-27 03:43:22,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:22,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:22,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290192151] [2019-12-27 03:43:22,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:22,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:43:22,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630569622] [2019-12-27 03:43:22,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:43:22,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:22,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:43:22,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:22,228 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 03:43:22,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:22,239 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-27 03:43:22,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:43:22,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 03:43:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:22,242 INFO L225 Difference]: With dead ends: 33 [2019-12-27 03:43:22,242 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 03:43:22,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:22,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 03:43:22,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 03:43:22,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 03:43:22,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-27 03:43:22,250 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-27 03:43:22,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:22,251 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-27 03:43:22,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:43:22,251 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-27 03:43:22,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:43:22,252 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:22,252 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:22,252 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:22,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:22,253 INFO L82 PathProgramCache]: Analyzing trace with hash 934712652, now seen corresponding path program 1 times [2019-12-27 03:43:22,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:22,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607411439] [2019-12-27 03:43:22,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:22,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607411439] [2019-12-27 03:43:22,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:22,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:43:22,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772139565] [2019-12-27 03:43:22,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:43:22,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:22,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:43:22,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:22,304 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 3 states. [2019-12-27 03:43:22,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:22,309 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 03:43:22,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:43:22,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 03:43:22,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:22,311 INFO L225 Difference]: With dead ends: 32 [2019-12-27 03:43:22,311 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 03:43:22,312 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:22,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 03:43:22,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 03:43:22,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 03:43:22,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 03:43:22,316 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 10 [2019-12-27 03:43:22,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:22,317 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 03:43:22,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:43:22,317 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 03:43:22,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:43:22,318 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:22,318 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:22,318 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:22,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:22,319 INFO L82 PathProgramCache]: Analyzing trace with hash -679898138, now seen corresponding path program 1 times [2019-12-27 03:43:22,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:22,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725891499] [2019-12-27 03:43:22,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:22,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:22,368 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725891499] [2019-12-27 03:43:22,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:22,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:43:22,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081480090] [2019-12-27 03:43:22,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:43:22,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:22,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:43:22,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:22,370 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-27 03:43:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:22,382 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 03:43:22,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:43:22,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 03:43:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:22,383 INFO L225 Difference]: With dead ends: 35 [2019-12-27 03:43:22,383 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 03:43:22,384 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 03:43:22,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 03:43:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 03:43:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 03:43:22,387 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 03:43:22,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:22,387 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 03:43:22,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:43:22,388 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 03:43:22,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:43:22,388 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:22,388 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:22,389 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:22,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:22,389 INFO L82 PathProgramCache]: Analyzing trace with hash 398044178, now seen corresponding path program 1 times [2019-12-27 03:43:22,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:22,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035265731] [2019-12-27 03:43:22,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:22,448 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035265731] [2019-12-27 03:43:22,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:22,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:43:22,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114500627] [2019-12-27 03:43:22,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:43:22,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:22,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:43:22,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:43:22,451 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 03:43:22,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:22,487 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-27 03:43:22,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:43:22,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:43:22,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:22,488 INFO L225 Difference]: With dead ends: 23 [2019-12-27 03:43:22,488 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 03:43:22,488 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:43:22,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 03:43:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 03:43:22,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 03:43:22,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-27 03:43:22,492 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-27 03:43:22,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:22,492 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-27 03:43:22,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:43:22,493 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-27 03:43:22,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:43:22,493 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:22,493 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:22,494 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:22,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:22,494 INFO L82 PathProgramCache]: Analyzing trace with hash -462405218, now seen corresponding path program 2 times [2019-12-27 03:43:22,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:22,494 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029060592] [2019-12-27 03:43:22,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:22,575 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029060592] [2019-12-27 03:43:22,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:22,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:43:22,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202617658] [2019-12-27 03:43:22,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:43:22,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:22,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:43:22,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:43:22,578 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-27 03:43:22,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:22,596 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-27 03:43:22,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:43:22,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:43:22,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:22,597 INFO L225 Difference]: With dead ends: 14 [2019-12-27 03:43:22,597 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:43:22,597 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:43:22,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:43:22,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:43:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:43:22,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:43:22,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 03:43:22,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:22,602 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:43:22,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:43:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:43:22,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:43:22,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:43:22 BasicIcfg [2019-12-27 03:43:22,609 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:43:22,613 INFO L168 Benchmark]: Toolchain (without parser) took 4084.74 ms. Allocated memory was 144.7 MB in the beginning and 248.5 MB in the end (delta: 103.8 MB). Free memory was 100.1 MB in the beginning and 126.3 MB in the end (delta: -26.2 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:22,614 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-27 03:43:22,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.08 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 99.6 MB in the beginning and 158.6 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:22,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.02 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:22,618 INFO L168 Benchmark]: Boogie Preprocessor took 24.88 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:22,619 INFO L168 Benchmark]: RCFGBuilder took 442.23 ms. Allocated memory is still 201.9 MB. Free memory was 155.2 MB in the beginning and 134.4 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:22,620 INFO L168 Benchmark]: TraceAbstraction took 2825.94 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 134.4 MB in the beginning and 126.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:22,631 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.08 ms. Allocated memory was 144.7 MB in the beginning and 201.9 MB in the end (delta: 57.1 MB). Free memory was 99.6 MB in the beginning and 158.6 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.02 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.88 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 442.23 ms. Allocated memory is still 201.9 MB. Free memory was 155.2 MB in the beginning and 134.4 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2825.94 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 134.4 MB in the beginning and 126.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 246 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 18 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 504 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 14 SDslu, 37 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...